- Short sleep time and poor sleep quality during pregnancy are associated with an increased risk for preterm birth.
Why this matters
- Prematurity is the leading cause of mortality in young children.
- Pregnancy is associated with disordered maternal sleep.
- For women with risk factors for preterm birth, screening and intervention for sleep disorders may improve outcomes.
- Short sleep duration was associated with an increased risk for preterm birth compared with those with the longest sleep duration (relative risk [RR], 1.23; 95% CI, 1.01-1.50).
- Women with poor sleep quality were at an increased risk for preterm birth (RR, 1.54; 95% CI, 1.18-2.01).
- Systematic review and meta-analysis.
- Studies with sleep duration and quality in pregnant women were identified (10 studies).
- Preterm birth was defined as
- Funding: Natural Science Foundation of Liaoning Province.
- Heterogeneity between studies.